/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-57.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 16:45:07,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 16:45:07,762 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 16:45:07,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 16:45:07,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 16:45:07,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 16:45:07,787 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 16:45:07,787 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 16:45:07,788 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 16:45:07,790 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 16:45:07,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 16:45:07,791 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 16:45:07,792 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 16:45:07,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 16:45:07,793 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 16:45:07,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 16:45:07,793 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 16:45:07,793 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 16:45:07,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 16:45:07,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 16:45:07,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 16:45:07,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 16:45:07,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 16:45:07,794 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 16:45:07,795 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 16:45:07,795 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 16:45:07,795 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 16:45:07,795 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 16:45:07,795 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 16:45:07,795 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 16:45:07,796 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 16:45:07,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 16:45:07,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 16:45:07,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 16:45:07,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 16:45:07,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 16:45:07,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 16:45:07,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 16:45:07,797 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 16:45:07,797 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 16:45:07,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 16:45:07,798 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 16:45:07,798 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 16:45:07,798 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 16:45:07,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 16:45:07,798 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 16:45:07,798 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 16:45:07,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 16:45:08,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 16:45:08,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 16:45:08,017 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 16:45:08,017 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 16:45:08,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-57.i [2023-12-24 16:45:08,972 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 16:45:09,138 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 16:45:09,139 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-57.i [2023-12-24 16:45:09,145 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9392d29ec/a324b9b7d2d3452a95780cb7cf76d825/FLAG01492272f [2023-12-24 16:45:09,159 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9392d29ec/a324b9b7d2d3452a95780cb7cf76d825 [2023-12-24 16:45:09,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 16:45:09,162 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 16:45:09,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 16:45:09,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 16:45:09,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 16:45:09,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568058c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09, skipping insertion in model container [2023-12-24 16:45:09,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,198 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 16:45:09,326 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-57.i[916,929] [2023-12-24 16:45:09,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 16:45:09,415 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 16:45:09,427 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-57.i[916,929] [2023-12-24 16:45:09,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 16:45:09,472 INFO L206 MainTranslator]: Completed translation [2023-12-24 16:45:09,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09 WrapperNode [2023-12-24 16:45:09,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 16:45:09,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 16:45:09,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 16:45:09,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 16:45:09,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,514 INFO L138 Inliner]: procedures = 33, calls = 152, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 443 [2023-12-24 16:45:09,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 16:45:09,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 16:45:09,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 16:45:09,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 16:45:09,522 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,527 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,543 INFO L175 MemorySlicer]: Split 110 memory accesses to 14 slices as follows [2, 9, 8, 8, 8, 6, 12, 12, 8, 12, 8, 6, 8, 3]. 11 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 3, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1]. [2023-12-24 16:45:09,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,544 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,556 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,559 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 16:45:09,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 16:45:09,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 16:45:09,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 16:45:09,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (1/1) ... [2023-12-24 16:45:09,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 16:45:09,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 16:45:09,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-24 16:45:09,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-24 16:45:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 16:45:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-24 16:45:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-24 16:45:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-24 16:45:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-24 16:45:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-24 16:45:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-24 16:45:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-12-24 16:45:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-12-24 16:45:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-12-24 16:45:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-12-24 16:45:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2023-12-24 16:45:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2023-12-24 16:45:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2023-12-24 16:45:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13 [2023-12-24 16:45:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 16:45:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-24 16:45:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-24 16:45:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-24 16:45:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-24 16:45:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-24 16:45:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-24 16:45:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-24 16:45:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-24 16:45:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-24 16:45:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-24 16:45:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-24 16:45:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-24 16:45:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-24 16:45:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-24 16:45:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-24 16:45:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-24 16:45:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-24 16:45:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-24 16:45:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-12-24 16:45:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2023-12-24 16:45:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2023-12-24 16:45:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2023-12-24 16:45:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2023-12-24 16:45:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2023-12-24 16:45:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2023-12-24 16:45:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#12 [2023-12-24 16:45:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#13 [2023-12-24 16:45:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-24 16:45:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-24 16:45:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-12-24 16:45:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-12-24 16:45:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-12-24 16:45:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-12-24 16:45:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2023-12-24 16:45:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2023-12-24 16:45:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2023-12-24 16:45:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2023-12-24 16:45:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2023-12-24 16:45:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2023-12-24 16:45:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2023-12-24 16:45:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2023-12-24 16:45:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-24 16:45:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-24 16:45:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-24 16:45:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-24 16:45:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-24 16:45:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-24 16:45:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-12-24 16:45:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-12-24 16:45:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-12-24 16:45:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-12-24 16:45:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2023-12-24 16:45:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2023-12-24 16:45:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2023-12-24 16:45:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2023-12-24 16:45:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-24 16:45:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-24 16:45:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-12-24 16:45:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-12-24 16:45:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-12-24 16:45:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-12-24 16:45:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2023-12-24 16:45:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2023-12-24 16:45:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2023-12-24 16:45:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2023-12-24 16:45:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2023-12-24 16:45:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2023-12-24 16:45:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2023-12-24 16:45:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2023-12-24 16:45:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-24 16:45:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-24 16:45:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2023-12-24 16:45:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2023-12-24 16:45:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#12 [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#13 [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 16:45:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 16:45:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-24 16:45:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-24 16:45:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-24 16:45:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-24 16:45:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-24 16:45:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-12-24 16:45:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-12-24 16:45:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-12-24 16:45:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-12-24 16:45:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-12-24 16:45:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2023-12-24 16:45:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2023-12-24 16:45:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2023-12-24 16:45:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2023-12-24 16:45:09,810 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 16:45:09,811 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 16:45:10,231 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 16:45:10,286 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 16:45:10,286 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 16:45:10,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 04:45:10 BoogieIcfgContainer [2023-12-24 16:45:10,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 16:45:10,288 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 16:45:10,288 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 16:45:10,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 16:45:10,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 04:45:09" (1/3) ... [2023-12-24 16:45:10,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766d6525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 04:45:10, skipping insertion in model container [2023-12-24 16:45:10,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:09" (2/3) ... [2023-12-24 16:45:10,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766d6525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 04:45:10, skipping insertion in model container [2023-12-24 16:45:10,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 04:45:10" (3/3) ... [2023-12-24 16:45:10,292 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-57.i [2023-12-24 16:45:10,315 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 16:45:10,316 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 16:45:10,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 16:45:10,359 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3be5b6b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 16:45:10,359 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 16:45:10,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 69 states have (on average 1.434782608695652) internal successors, (99), 70 states have internal predecessors, (99), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-24 16:45:10,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-24 16:45:10,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:10,381 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:10,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:10,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:10,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1114997254, now seen corresponding path program 1 times [2023-12-24 16:45:10,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:10,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720353687] [2023-12-24 16:45:10,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:10,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:10,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:10,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:10,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-24 16:45:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:10,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 16:45:10,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:10,674 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-12-24 16:45:10,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:45:10,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:10,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720353687] [2023-12-24 16:45:10,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720353687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:45:10,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:45:10,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 16:45:10,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620607906] [2023-12-24 16:45:10,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:10,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 16:45:10,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:10,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 16:45:10,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 16:45:10,709 INFO L87 Difference]: Start difference. First operand has 90 states, 69 states have (on average 1.434782608695652) internal successors, (99), 70 states have internal predecessors, (99), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-24 16:45:10,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:10,758 INFO L93 Difference]: Finished difference Result 177 states and 286 transitions. [2023-12-24 16:45:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 16:45:10,760 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 129 [2023-12-24 16:45:10,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:10,766 INFO L225 Difference]: With dead ends: 177 [2023-12-24 16:45:10,767 INFO L226 Difference]: Without dead ends: 88 [2023-12-24 16:45:10,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 16:45:10,773 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:10,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 16:45:10,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-12-24 16:45:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-12-24 16:45:10,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 68 states have internal predecessors, (94), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-24 16:45:10,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 130 transitions. [2023-12-24 16:45:10,816 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 130 transitions. Word has length 129 [2023-12-24 16:45:10,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:10,817 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 130 transitions. [2023-12-24 16:45:10,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-24 16:45:10,817 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 130 transitions. [2023-12-24 16:45:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-24 16:45:10,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:10,823 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:10,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:11,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:11,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:11,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:11,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1439695458, now seen corresponding path program 1 times [2023-12-24 16:45:11,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:11,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060563588] [2023-12-24 16:45:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:11,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:11,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:11,031 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:11,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-24 16:45:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:11,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 16:45:11,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:11,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-24 16:45:11,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-24 16:45:11,757 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:11,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:45:11,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:11,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060563588] [2023-12-24 16:45:11,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060563588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:45:11,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:45:11,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 16:45:11,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327217182] [2023-12-24 16:45:11,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:11,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 16:45:11,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:11,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 16:45:11,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 16:45:11,760 INFO L87 Difference]: Start difference. First operand 88 states and 130 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:11,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:11,951 INFO L93 Difference]: Finished difference Result 263 states and 389 transitions. [2023-12-24 16:45:11,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 16:45:11,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2023-12-24 16:45:11,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:11,955 INFO L225 Difference]: With dead ends: 263 [2023-12-24 16:45:11,955 INFO L226 Difference]: Without dead ends: 176 [2023-12-24 16:45:11,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 16:45:11,959 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 103 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:11,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 349 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:45:11,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-12-24 16:45:11,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 146. [2023-12-24 16:45:11,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 107 states have (on average 1.3271028037383177) internal successors, (142), 107 states have internal predecessors, (142), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-24 16:45:11,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 214 transitions. [2023-12-24 16:45:11,973 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 214 transitions. Word has length 129 [2023-12-24 16:45:11,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:11,973 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 214 transitions. [2023-12-24 16:45:11,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:11,974 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 214 transitions. [2023-12-24 16:45:11,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-24 16:45:11,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:11,975 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:11,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:12,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:12,181 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:12,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:12,182 INFO L85 PathProgramCache]: Analyzing trace with hash -847260126, now seen corresponding path program 1 times [2023-12-24 16:45:12,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:12,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811182722] [2023-12-24 16:45:12,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:12,183 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:12,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:12,184 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:12,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-24 16:45:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:12,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:45:12,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:12,716 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 16 proven. 116 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-24 16:45:12,716 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:12,791 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:12,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:12,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811182722] [2023-12-24 16:45:12,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811182722] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:12,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:12,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-12-24 16:45:12,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044653274] [2023-12-24 16:45:12,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:12,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:45:12,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:12,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:45:12,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:45:12,799 INFO L87 Difference]: Start difference. First operand 146 states and 214 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:12,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:12,858 INFO L93 Difference]: Finished difference Result 297 states and 440 transitions. [2023-12-24 16:45:12,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 16:45:12,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 136 [2023-12-24 16:45:12,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:12,861 INFO L225 Difference]: With dead ends: 297 [2023-12-24 16:45:12,861 INFO L226 Difference]: Without dead ends: 208 [2023-12-24 16:45:12,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:45:12,864 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 124 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:12,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 354 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 16:45:12,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-12-24 16:45:12,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 166. [2023-12-24 16:45:12,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 127 states have (on average 1.3543307086614174) internal successors, (172), 127 states have internal predecessors, (172), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-24 16:45:12,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 244 transitions. [2023-12-24 16:45:12,892 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 244 transitions. Word has length 136 [2023-12-24 16:45:12,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:12,894 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 244 transitions. [2023-12-24 16:45:12,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:12,894 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 244 transitions. [2023-12-24 16:45:12,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-24 16:45:12,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:12,895 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:12,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-24 16:45:13,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:13,101 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:13,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:13,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1453562464, now seen corresponding path program 1 times [2023-12-24 16:45:13,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:13,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949814531] [2023-12-24 16:45:13,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:13,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:13,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:13,103 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:13,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 16:45:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:13,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-24 16:45:13,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:13,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-24 16:45:13,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-24 16:45:13,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2023-12-24 16:45:13,578 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-24 16:45:13,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2023-12-24 16:45:13,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 54 [2023-12-24 16:45:13,679 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:13,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:45:13,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:13,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949814531] [2023-12-24 16:45:13,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949814531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:45:13,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:45:13,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-24 16:45:13,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906602548] [2023-12-24 16:45:13,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:13,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 16:45:13,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:13,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 16:45:13,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-24 16:45:13,680 INFO L87 Difference]: Start difference. First operand 166 states and 244 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:13,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:13,958 INFO L93 Difference]: Finished difference Result 293 states and 432 transitions. [2023-12-24 16:45:13,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 16:45:13,958 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 136 [2023-12-24 16:45:13,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:13,959 INFO L225 Difference]: With dead ends: 293 [2023-12-24 16:45:13,959 INFO L226 Difference]: Without dead ends: 196 [2023-12-24 16:45:13,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:45:13,960 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 170 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:13,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 747 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 16:45:13,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-12-24 16:45:13,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 173. [2023-12-24 16:45:13,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 134 states have (on average 1.3582089552238805) internal successors, (182), 134 states have internal predecessors, (182), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-24 16:45:13,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 254 transitions. [2023-12-24 16:45:13,968 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 254 transitions. Word has length 136 [2023-12-24 16:45:13,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:13,968 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 254 transitions. [2023-12-24 16:45:13,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:13,968 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 254 transitions. [2023-12-24 16:45:13,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-24 16:45:13,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:13,969 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:13,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-24 16:45:14,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:14,175 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:14,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:14,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1322375489, now seen corresponding path program 1 times [2023-12-24 16:45:14,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:14,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757209671] [2023-12-24 16:45:14,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:14,176 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:14,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:14,177 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:14,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-24 16:45:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:14,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:45:14,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 14 proven. 222 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2023-12-24 16:45:14,616 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:14,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:14,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757209671] [2023-12-24 16:45:14,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757209671] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:14,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:14,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-12-24 16:45:14,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211403301] [2023-12-24 16:45:14,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:14,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:45:14,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:14,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:45:14,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-24 16:45:14,686 INFO L87 Difference]: Start difference. First operand 173 states and 254 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:14,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:14,750 INFO L93 Difference]: Finished difference Result 348 states and 508 transitions. [2023-12-24 16:45:14,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 16:45:14,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2023-12-24 16:45:14,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:14,752 INFO L225 Difference]: With dead ends: 348 [2023-12-24 16:45:14,752 INFO L226 Difference]: Without dead ends: 251 [2023-12-24 16:45:14,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:45:14,752 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 144 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:14,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 380 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 16:45:14,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-12-24 16:45:14,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 227. [2023-12-24 16:45:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 184 states have (on average 1.3695652173913044) internal successors, (252), 185 states have internal predecessors, (252), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-24 16:45:14,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 328 transitions. [2023-12-24 16:45:14,761 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 328 transitions. Word has length 139 [2023-12-24 16:45:14,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:14,761 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 328 transitions. [2023-12-24 16:45:14,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:14,762 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 328 transitions. [2023-12-24 16:45:14,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-24 16:45:14,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:14,763 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:14,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:14,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:14,968 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:14,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:14,969 INFO L85 PathProgramCache]: Analyzing trace with hash 929348479, now seen corresponding path program 1 times [2023-12-24 16:45:14,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:14,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349420430] [2023-12-24 16:45:14,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:14,969 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:14,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:14,970 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:14,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 16:45:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:15,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 16:45:15,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:15,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:45:15,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:15,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349420430] [2023-12-24 16:45:15,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349420430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:45:15,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:45:15,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 16:45:15,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947214784] [2023-12-24 16:45:15,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:15,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 16:45:15,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:15,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 16:45:15,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 16:45:15,176 INFO L87 Difference]: Start difference. First operand 227 states and 328 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:15,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:15,206 INFO L93 Difference]: Finished difference Result 369 states and 534 transitions. [2023-12-24 16:45:15,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 16:45:15,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2023-12-24 16:45:15,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:15,209 INFO L225 Difference]: With dead ends: 369 [2023-12-24 16:45:15,209 INFO L226 Difference]: Without dead ends: 235 [2023-12-24 16:45:15,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 16:45:15,209 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 3 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:15,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 366 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 16:45:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-12-24 16:45:15,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 231. [2023-12-24 16:45:15,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 188 states have (on average 1.3617021276595744) internal successors, (256), 189 states have internal predecessors, (256), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-24 16:45:15,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 332 transitions. [2023-12-24 16:45:15,218 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 332 transitions. Word has length 139 [2023-12-24 16:45:15,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:15,218 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 332 transitions. [2023-12-24 16:45:15,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 332 transitions. [2023-12-24 16:45:15,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-24 16:45:15,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:15,219 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:15,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:15,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:15,425 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:15,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:15,425 INFO L85 PathProgramCache]: Analyzing trace with hash 929408061, now seen corresponding path program 1 times [2023-12-24 16:45:15,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:15,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886359366] [2023-12-24 16:45:15,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:15,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:15,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:15,426 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:15,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-24 16:45:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:15,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-24 16:45:15,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:16,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2023-12-24 16:45:16,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 75 [2023-12-24 16:45:16,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 63 [2023-12-24 16:45:16,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 51 [2023-12-24 16:45:16,300 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 368 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-12-24 16:45:16,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:16,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:16,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886359366] [2023-12-24 16:45:16,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886359366] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:16,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:16,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2023-12-24 16:45:16,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010488725] [2023-12-24 16:45:16,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:16,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 16:45:16,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:16,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 16:45:16,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-24 16:45:16,395 INFO L87 Difference]: Start difference. First operand 231 states and 332 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:16,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:16,585 INFO L93 Difference]: Finished difference Result 501 states and 716 transitions. [2023-12-24 16:45:16,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 16:45:16,585 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2023-12-24 16:45:16,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:16,587 INFO L225 Difference]: With dead ends: 501 [2023-12-24 16:45:16,587 INFO L226 Difference]: Without dead ends: 363 [2023-12-24 16:45:16,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-12-24 16:45:16,588 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 150 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:16,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 738 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:45:16,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-12-24 16:45:16,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 344. [2023-12-24 16:45:16,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 287 states have (on average 1.3519163763066202) internal successors, (388), 290 states have internal predecessors, (388), 50 states have call successors, (50), 6 states have call predecessors, (50), 6 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-24 16:45:16,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 488 transitions. [2023-12-24 16:45:16,599 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 488 transitions. Word has length 139 [2023-12-24 16:45:16,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:16,599 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 488 transitions. [2023-12-24 16:45:16,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:16,599 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 488 transitions. [2023-12-24 16:45:16,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-24 16:45:16,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:16,600 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:16,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-24 16:45:16,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:16,801 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:16,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:16,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1132338288, now seen corresponding path program 1 times [2023-12-24 16:45:16,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:16,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312227344] [2023-12-24 16:45:16,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:16,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:16,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:16,803 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:16,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-24 16:45:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:17,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-24 16:45:17,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:17,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-12-24 16:45:17,382 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 296 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2023-12-24 16:45:17,382 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:17,479 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:17,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:17,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312227344] [2023-12-24 16:45:17,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312227344] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:17,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:17,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-12-24 16:45:17,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295853381] [2023-12-24 16:45:17,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:17,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:45:17,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:17,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:45:17,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:45:17,481 INFO L87 Difference]: Start difference. First operand 344 states and 488 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:17,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:17,549 INFO L93 Difference]: Finished difference Result 850 states and 1199 transitions. [2023-12-24 16:45:17,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 16:45:17,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2023-12-24 16:45:17,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:17,552 INFO L225 Difference]: With dead ends: 850 [2023-12-24 16:45:17,553 INFO L226 Difference]: Without dead ends: 599 [2023-12-24 16:45:17,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-24 16:45:17,554 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 160 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:17,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 372 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 16:45:17,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2023-12-24 16:45:17,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 595. [2023-12-24 16:45:17,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 521 states have (on average 1.3666026871401151) internal successors, (712), 528 states have internal predecessors, (712), 62 states have call successors, (62), 11 states have call predecessors, (62), 11 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-24 16:45:17,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 836 transitions. [2023-12-24 16:45:17,571 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 836 transitions. Word has length 140 [2023-12-24 16:45:17,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:17,571 INFO L495 AbstractCegarLoop]: Abstraction has 595 states and 836 transitions. [2023-12-24 16:45:17,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:17,571 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 836 transitions. [2023-12-24 16:45:17,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-24 16:45:17,572 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:17,573 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:17,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:17,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:17,780 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:17,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:17,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1641811378, now seen corresponding path program 1 times [2023-12-24 16:45:17,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:17,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137571699] [2023-12-24 16:45:17,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:17,781 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:17,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:17,782 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:17,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-24 16:45:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:17,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:45:18,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:18,292 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 296 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2023-12-24 16:45:18,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:18,383 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:18,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:18,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137571699] [2023-12-24 16:45:18,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137571699] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:18,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:18,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2023-12-24 16:45:18,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501574255] [2023-12-24 16:45:18,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:18,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 16:45:18,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:18,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 16:45:18,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:45:18,385 INFO L87 Difference]: Start difference. First operand 595 states and 836 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:18,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:18,470 INFO L93 Difference]: Finished difference Result 1482 states and 2065 transitions. [2023-12-24 16:45:18,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 16:45:18,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2023-12-24 16:45:18,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:18,473 INFO L225 Difference]: With dead ends: 1482 [2023-12-24 16:45:18,473 INFO L226 Difference]: Without dead ends: 1039 [2023-12-24 16:45:18,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-12-24 16:45:18,474 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 155 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:18,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 818 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:45:18,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2023-12-24 16:45:18,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 698. [2023-12-24 16:45:18,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 618 states have (on average 1.36084142394822) internal successors, (841), 626 states have internal predecessors, (841), 66 states have call successors, (66), 13 states have call predecessors, (66), 13 states have return successors, (66), 58 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-24 16:45:18,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 973 transitions. [2023-12-24 16:45:18,492 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 973 transitions. Word has length 140 [2023-12-24 16:45:18,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:18,492 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 973 transitions. [2023-12-24 16:45:18,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:18,492 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 973 transitions. [2023-12-24 16:45:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-24 16:45:18,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:18,493 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:18,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:18,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:18,698 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:18,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:18,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1642038668, now seen corresponding path program 1 times [2023-12-24 16:45:18,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:18,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152146132] [2023-12-24 16:45:18,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:18,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:18,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:18,700 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:18,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-24 16:45:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:18,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:45:18,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:19,182 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 16 proven. 116 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-24 16:45:19,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:19,279 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:19,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:19,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152146132] [2023-12-24 16:45:19,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152146132] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:19,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:19,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-12-24 16:45:19,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571804096] [2023-12-24 16:45:19,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:19,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:45:19,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:19,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:45:19,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:45:19,280 INFO L87 Difference]: Start difference. First operand 698 states and 973 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:19,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:19,367 INFO L93 Difference]: Finished difference Result 1387 states and 1935 transitions. [2023-12-24 16:45:19,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 16:45:19,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2023-12-24 16:45:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:19,370 INFO L225 Difference]: With dead ends: 1387 [2023-12-24 16:45:19,371 INFO L226 Difference]: Without dead ends: 899 [2023-12-24 16:45:19,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:45:19,372 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 72 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:19,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 537 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:45:19,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2023-12-24 16:45:19,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 726. [2023-12-24 16:45:19,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 646 states have (on average 1.3622291021671826) internal successors, (880), 654 states have internal predecessors, (880), 66 states have call successors, (66), 13 states have call predecessors, (66), 13 states have return successors, (66), 58 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-24 16:45:19,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1012 transitions. [2023-12-24 16:45:19,390 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1012 transitions. Word has length 140 [2023-12-24 16:45:19,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:19,390 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 1012 transitions. [2023-12-24 16:45:19,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:19,391 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1012 transitions. [2023-12-24 16:45:19,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-24 16:45:19,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:19,392 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:19,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-24 16:45:19,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:19,597 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:19,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:19,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1249011658, now seen corresponding path program 1 times [2023-12-24 16:45:19,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:19,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709194128] [2023-12-24 16:45:19,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:19,598 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:19,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:19,599 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:19,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-24 16:45:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:19,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:45:19,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:20,070 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 14 proven. 222 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2023-12-24 16:45:20,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:20,141 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:20,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:20,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709194128] [2023-12-24 16:45:20,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [709194128] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:20,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:20,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-12-24 16:45:20,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740120871] [2023-12-24 16:45:20,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:20,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:45:20,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:20,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:45:20,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:45:20,143 INFO L87 Difference]: Start difference. First operand 726 states and 1012 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:20,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:20,218 INFO L93 Difference]: Finished difference Result 1291 states and 1795 transitions. [2023-12-24 16:45:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 16:45:20,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2023-12-24 16:45:20,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:20,223 INFO L225 Difference]: With dead ends: 1291 [2023-12-24 16:45:20,223 INFO L226 Difference]: Without dead ends: 752 [2023-12-24 16:45:20,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:45:20,224 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 75 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:20,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 509 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:45:20,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-12-24 16:45:20,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 561. [2023-12-24 16:45:20,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 495 states have (on average 1.3636363636363635) internal successors, (675), 498 states have internal predecessors, (675), 54 states have call successors, (54), 11 states have call predecessors, (54), 11 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-24 16:45:20,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 783 transitions. [2023-12-24 16:45:20,239 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 783 transitions. Word has length 140 [2023-12-24 16:45:20,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:20,239 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 783 transitions. [2023-12-24 16:45:20,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:20,239 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 783 transitions. [2023-12-24 16:45:20,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-24 16:45:20,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:20,240 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:20,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:20,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:20,445 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:20,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:20,446 INFO L85 PathProgramCache]: Analyzing trace with hash -255607984, now seen corresponding path program 1 times [2023-12-24 16:45:20,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:20,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923300232] [2023-12-24 16:45:20,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:20,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:20,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:20,447 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:20,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-24 16:45:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:20,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:45:20,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:20,866 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 16 proven. 116 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-24 16:45:20,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:20,927 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:20,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:20,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923300232] [2023-12-24 16:45:20,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923300232] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:20,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:20,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-12-24 16:45:20,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24022697] [2023-12-24 16:45:20,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:20,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:45:20,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:20,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:45:20,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-24 16:45:20,929 INFO L87 Difference]: Start difference. First operand 561 states and 783 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:21,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:21,014 INFO L93 Difference]: Finished difference Result 990 states and 1384 transitions. [2023-12-24 16:45:21,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 16:45:21,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2023-12-24 16:45:21,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:21,017 INFO L225 Difference]: With dead ends: 990 [2023-12-24 16:45:21,017 INFO L226 Difference]: Without dead ends: 588 [2023-12-24 16:45:21,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:45:21,018 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 111 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:21,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 439 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:45:21,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-12-24 16:45:21,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 495. [2023-12-24 16:45:21,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 429 states have (on average 1.3403263403263403) internal successors, (575), 432 states have internal predecessors, (575), 54 states have call successors, (54), 11 states have call predecessors, (54), 11 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-24 16:45:21,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 683 transitions. [2023-12-24 16:45:21,032 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 683 transitions. Word has length 140 [2023-12-24 16:45:21,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:21,032 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 683 transitions. [2023-12-24 16:45:21,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:21,032 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 683 transitions. [2023-12-24 16:45:21,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-24 16:45:21,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:21,033 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:21,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:21,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:21,238 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:21,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:21,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1021746224, now seen corresponding path program 1 times [2023-12-24 16:45:21,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:21,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824221717] [2023-12-24 16:45:21,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:21,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:21,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:21,240 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:21,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-24 16:45:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:21,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:45:21,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:21,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 16:45:21,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 41 [2023-12-24 16:45:21,687 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:21,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:45:21,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:21,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824221717] [2023-12-24 16:45:21,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824221717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:45:21,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:45:21,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 16:45:21,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390149454] [2023-12-24 16:45:21,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:21,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 16:45:21,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:21,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 16:45:21,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 16:45:21,688 INFO L87 Difference]: Start difference. First operand 495 states and 683 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:21,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:21,825 INFO L93 Difference]: Finished difference Result 509 states and 700 transitions. [2023-12-24 16:45:21,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 16:45:21,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2023-12-24 16:45:21,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:21,827 INFO L225 Difference]: With dead ends: 509 [2023-12-24 16:45:21,827 INFO L226 Difference]: Without dead ends: 507 [2023-12-24 16:45:21,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-24 16:45:21,827 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 158 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:21,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 608 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:45:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-24 16:45:21,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 503. [2023-12-24 16:45:21,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 437 states have (on average 1.334096109839817) internal successors, (583), 440 states have internal predecessors, (583), 54 states have call successors, (54), 11 states have call predecessors, (54), 11 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-24 16:45:21,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 691 transitions. [2023-12-24 16:45:21,840 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 691 transitions. Word has length 142 [2023-12-24 16:45:21,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:21,840 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 691 transitions. [2023-12-24 16:45:21,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:21,841 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 691 transitions. [2023-12-24 16:45:21,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-24 16:45:21,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:21,841 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:21,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:22,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:22,047 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:22,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:22,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1021686642, now seen corresponding path program 1 times [2023-12-24 16:45:22,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:22,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225283082] [2023-12-24 16:45:22,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:22,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:22,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:22,049 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:22,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-24 16:45:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:22,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-24 16:45:22,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:23,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2023-12-24 16:45:23,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 91 [2023-12-24 16:45:23,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 79 [2023-12-24 16:45:23,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 57 [2023-12-24 16:45:23,717 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 16 proven. 317 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2023-12-24 16:45:23,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:23,889 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:23,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:23,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225283082] [2023-12-24 16:45:23,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225283082] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:23,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:23,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [22] total 25 [2023-12-24 16:45:23,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828625201] [2023-12-24 16:45:23,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:23,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 16:45:23,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:23,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 16:45:23,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2023-12-24 16:45:23,891 INFO L87 Difference]: Start difference. First operand 503 states and 691 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:24,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:24,139 INFO L93 Difference]: Finished difference Result 1242 states and 1699 transitions. [2023-12-24 16:45:24,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 16:45:24,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2023-12-24 16:45:24,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:24,143 INFO L225 Difference]: With dead ends: 1242 [2023-12-24 16:45:24,144 INFO L226 Difference]: Without dead ends: 898 [2023-12-24 16:45:24,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2023-12-24 16:45:24,145 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 100 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:24,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 714 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:45:24,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2023-12-24 16:45:24,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 891. [2023-12-24 16:45:24,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 787 states have (on average 1.3278271918678526) internal successors, (1045), 794 states have internal predecessors, (1045), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-24 16:45:24,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1213 transitions. [2023-12-24 16:45:24,177 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1213 transitions. Word has length 142 [2023-12-24 16:45:24,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:24,178 INFO L495 AbstractCegarLoop]: Abstraction has 891 states and 1213 transitions. [2023-12-24 16:45:24,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:24,179 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1213 transitions. [2023-12-24 16:45:24,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-24 16:45:24,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:24,180 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:24,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:24,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:24,386 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:24,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:24,386 INFO L85 PathProgramCache]: Analyzing trace with hash -941634676, now seen corresponding path program 1 times [2023-12-24 16:45:24,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:24,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965543824] [2023-12-24 16:45:24,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:24,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:24,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:24,388 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:24,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-24 16:45:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:24,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:45:24,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 16 proven. 116 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-24 16:45:24,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:24,880 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:24,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:24,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965543824] [2023-12-24 16:45:24,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965543824] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:24,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:24,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-12-24 16:45:24,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802015795] [2023-12-24 16:45:24,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:24,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:45:24,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:24,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:45:24,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-24 16:45:24,881 INFO L87 Difference]: Start difference. First operand 891 states and 1213 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:24,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:24,949 INFO L93 Difference]: Finished difference Result 1796 states and 2441 transitions. [2023-12-24 16:45:24,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 16:45:24,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2023-12-24 16:45:24,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:24,953 INFO L225 Difference]: With dead ends: 1796 [2023-12-24 16:45:24,953 INFO L226 Difference]: Without dead ends: 1089 [2023-12-24 16:45:24,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:45:24,956 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 103 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:24,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 435 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 16:45:24,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2023-12-24 16:45:24,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 921. [2023-12-24 16:45:24,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 817 states have (on average 1.3133414932680538) internal successors, (1073), 824 states have internal predecessors, (1073), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-24 16:45:24,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1241 transitions. [2023-12-24 16:45:24,979 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1241 transitions. Word has length 142 [2023-12-24 16:45:24,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:24,980 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1241 transitions. [2023-12-24 16:45:24,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:24,980 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1241 transitions. [2023-12-24 16:45:24,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-24 16:45:24,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:24,981 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:24,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:25,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:25,186 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:25,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:25,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1759283126, now seen corresponding path program 1 times [2023-12-24 16:45:25,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:25,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462284780] [2023-12-24 16:45:25,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:25,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:25,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:25,188 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:25,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-24 16:45:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:25,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:45:25,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:25,612 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 16 proven. 116 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-24 16:45:25,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:25,690 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:25,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:25,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462284780] [2023-12-24 16:45:25,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462284780] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:25,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:25,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-12-24 16:45:25,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91337070] [2023-12-24 16:45:25,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:25,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:45:25,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:25,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:45:25,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-24 16:45:25,692 INFO L87 Difference]: Start difference. First operand 921 states and 1241 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:25,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:25,768 INFO L93 Difference]: Finished difference Result 1853 states and 2500 transitions. [2023-12-24 16:45:25,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 16:45:25,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2023-12-24 16:45:25,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:25,780 INFO L225 Difference]: With dead ends: 1853 [2023-12-24 16:45:25,780 INFO L226 Difference]: Without dead ends: 1180 [2023-12-24 16:45:25,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:45:25,781 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 65 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:25,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 561 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 16:45:25,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2023-12-24 16:45:25,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 923. [2023-12-24 16:45:25,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 819 states have (on average 1.3101343101343101) internal successors, (1073), 826 states have internal predecessors, (1073), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-24 16:45:25,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1241 transitions. [2023-12-24 16:45:25,815 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1241 transitions. Word has length 142 [2023-12-24 16:45:25,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:25,815 INFO L495 AbstractCegarLoop]: Abstraction has 923 states and 1241 transitions. [2023-12-24 16:45:25,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:25,816 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1241 transitions. [2023-12-24 16:45:25,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-24 16:45:25,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:25,818 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:25,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:26,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:26,023 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:26,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:26,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1885982235, now seen corresponding path program 1 times [2023-12-24 16:45:26,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:26,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107208980] [2023-12-24 16:45:26,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:26,024 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:26,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:26,025 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:26,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-24 16:45:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:26,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:45:26,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 296 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2023-12-24 16:45:26,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:26,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:26,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107208980] [2023-12-24 16:45:26,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107208980] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:26,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:26,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2023-12-24 16:45:26,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456150886] [2023-12-24 16:45:26,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:26,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 16:45:26,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:26,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 16:45:26,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:45:26,597 INFO L87 Difference]: Start difference. First operand 923 states and 1241 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:26,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:26,679 INFO L93 Difference]: Finished difference Result 1928 states and 2569 transitions. [2023-12-24 16:45:26,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 16:45:26,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2023-12-24 16:45:26,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:26,683 INFO L225 Difference]: With dead ends: 1928 [2023-12-24 16:45:26,683 INFO L226 Difference]: Without dead ends: 1253 [2023-12-24 16:45:26,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-12-24 16:45:26,685 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 163 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:26,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 524 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:45:26,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2023-12-24 16:45:26,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 945. [2023-12-24 16:45:26,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 841 states have (on average 1.3043995243757431) internal successors, (1097), 848 states have internal predecessors, (1097), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-24 16:45:26,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1265 transitions. [2023-12-24 16:45:26,713 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1265 transitions. Word has length 143 [2023-12-24 16:45:26,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:26,714 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1265 transitions. [2023-12-24 16:45:26,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:26,714 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1265 transitions. [2023-12-24 16:45:26,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-24 16:45:26,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:26,715 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:26,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:26,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:26,920 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:26,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:26,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1707920483, now seen corresponding path program 1 times [2023-12-24 16:45:26,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:26,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044651950] [2023-12-24 16:45:26,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:26,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:26,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:26,922 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:26,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-24 16:45:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:27,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 16:45:27,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:27,141 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:27,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:45:27,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:27,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044651950] [2023-12-24 16:45:27,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044651950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:45:27,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:45:27,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 16:45:27,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072334290] [2023-12-24 16:45:27,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:27,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 16:45:27,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:27,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 16:45:27,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-24 16:45:27,143 INFO L87 Difference]: Start difference. First operand 945 states and 1265 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:27,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:27,212 INFO L93 Difference]: Finished difference Result 1721 states and 2315 transitions. [2023-12-24 16:45:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 16:45:27,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2023-12-24 16:45:27,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:27,215 INFO L225 Difference]: With dead ends: 1721 [2023-12-24 16:45:27,215 INFO L226 Difference]: Without dead ends: 1032 [2023-12-24 16:45:27,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-24 16:45:27,217 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 62 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:27,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 602 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 16:45:27,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2023-12-24 16:45:27,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 963. [2023-12-24 16:45:27,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 859 states have (on average 1.2980209545983703) internal successors, (1115), 866 states have internal predecessors, (1115), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-24 16:45:27,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1283 transitions. [2023-12-24 16:45:27,239 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1283 transitions. Word has length 143 [2023-12-24 16:45:27,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:27,239 INFO L495 AbstractCegarLoop]: Abstraction has 963 states and 1283 transitions. [2023-12-24 16:45:27,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:27,239 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1283 transitions. [2023-12-24 16:45:27,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-24 16:45:27,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:27,240 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:27,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:27,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:27,445 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:27,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:27,446 INFO L85 PathProgramCache]: Analyzing trace with hash -827196748, now seen corresponding path program 1 times [2023-12-24 16:45:27,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:27,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851151437] [2023-12-24 16:45:27,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:27,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:27,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:27,447 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:27,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-24 16:45:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:27,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-24 16:45:27,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:30,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2023-12-24 16:45:30,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2023-12-24 16:45:30,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2023-12-24 16:45:30,812 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 20 proven. 397 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-12-24 16:45:30,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:31,582 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:31,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:31,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851151437] [2023-12-24 16:45:31,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851151437] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:31,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:31,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [31] total 38 [2023-12-24 16:45:31,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089142390] [2023-12-24 16:45:31,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:31,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 16:45:31,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:31,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 16:45:31,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1274, Unknown=0, NotChecked=0, Total=1406 [2023-12-24 16:45:31,585 INFO L87 Difference]: Start difference. First operand 963 states and 1283 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:32,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:32,091 INFO L93 Difference]: Finished difference Result 2147 states and 2858 transitions. [2023-12-24 16:45:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 16:45:32,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2023-12-24 16:45:32,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:32,096 INFO L225 Difference]: With dead ends: 2147 [2023-12-24 16:45:32,096 INFO L226 Difference]: Without dead ends: 1440 [2023-12-24 16:45:32,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=157, Invalid=1483, Unknown=0, NotChecked=0, Total=1640 [2023-12-24 16:45:32,098 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 106 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:32,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 890 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 16:45:32,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2023-12-24 16:45:32,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1232. [2023-12-24 16:45:32,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1128 states have (on average 1.3129432624113475) internal successors, (1481), 1135 states have internal predecessors, (1481), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-24 16:45:32,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1649 transitions. [2023-12-24 16:45:32,137 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1649 transitions. Word has length 144 [2023-12-24 16:45:32,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:32,137 INFO L495 AbstractCegarLoop]: Abstraction has 1232 states and 1649 transitions. [2023-12-24 16:45:32,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:32,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1649 transitions. [2023-12-24 16:45:32,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-24 16:45:32,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:32,138 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:32,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:32,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:32,344 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:32,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:32,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1220223758, now seen corresponding path program 1 times [2023-12-24 16:45:32,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:32,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659293469] [2023-12-24 16:45:32,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:32,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:32,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:32,346 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:32,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-24 16:45:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:32,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-24 16:45:32,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:32,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-12-24 16:45:32,960 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 5 proven. 303 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2023-12-24 16:45:32,960 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:33,055 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:33,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:33,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659293469] [2023-12-24 16:45:33,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659293469] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:33,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:33,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-12-24 16:45:33,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762288725] [2023-12-24 16:45:33,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:33,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:45:33,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:33,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:45:33,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:45:33,057 INFO L87 Difference]: Start difference. First operand 1232 states and 1649 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:33,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:33,176 INFO L93 Difference]: Finished difference Result 2700 states and 3608 transitions. [2023-12-24 16:45:33,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 16:45:33,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2023-12-24 16:45:33,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:33,181 INFO L225 Difference]: With dead ends: 2700 [2023-12-24 16:45:33,181 INFO L226 Difference]: Without dead ends: 1821 [2023-12-24 16:45:33,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-24 16:45:33,183 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 162 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:33,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 352 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:45:33,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2023-12-24 16:45:33,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1598. [2023-12-24 16:45:33,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1472 states have (on average 1.310461956521739) internal successors, (1929), 1481 states have internal predecessors, (1929), 100 states have call successors, (100), 25 states have call predecessors, (100), 25 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-24 16:45:33,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2129 transitions. [2023-12-24 16:45:33,243 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2129 transitions. Word has length 144 [2023-12-24 16:45:33,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:33,243 INFO L495 AbstractCegarLoop]: Abstraction has 1598 states and 2129 transitions. [2023-12-24 16:45:33,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:33,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2129 transitions. [2023-12-24 16:45:33,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-24 16:45:33,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:33,244 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:33,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:33,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:33,450 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:33,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:33,450 INFO L85 PathProgramCache]: Analyzing trace with hash -505432982, now seen corresponding path program 1 times [2023-12-24 16:45:33,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:33,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484296227] [2023-12-24 16:45:33,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:33,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:33,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:33,452 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:33,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-24 16:45:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:33,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-24 16:45:33,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:36,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2023-12-24 16:45:36,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2023-12-24 16:45:36,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2023-12-24 16:45:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 20 proven. 397 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-12-24 16:45:37,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:37,953 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:37,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:37,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484296227] [2023-12-24 16:45:37,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484296227] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:37,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:37,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [31] total 38 [2023-12-24 16:45:37,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766500605] [2023-12-24 16:45:37,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:37,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 16:45:37,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:37,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 16:45:37,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1274, Unknown=0, NotChecked=0, Total=1406 [2023-12-24 16:45:37,955 INFO L87 Difference]: Start difference. First operand 1598 states and 2129 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:38,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:38,500 INFO L93 Difference]: Finished difference Result 2917 states and 3884 transitions. [2023-12-24 16:45:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 16:45:38,502 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2023-12-24 16:45:38,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:38,506 INFO L225 Difference]: With dead ends: 2917 [2023-12-24 16:45:38,506 INFO L226 Difference]: Without dead ends: 1773 [2023-12-24 16:45:38,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=157, Invalid=1483, Unknown=0, NotChecked=0, Total=1640 [2023-12-24 16:45:38,508 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 93 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:38,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 948 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 16:45:38,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2023-12-24 16:45:38,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1581. [2023-12-24 16:45:38,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1454 states have (on average 1.3081155433287484) internal successors, (1902), 1463 states have internal predecessors, (1902), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-24 16:45:38,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2102 transitions. [2023-12-24 16:45:38,546 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2102 transitions. Word has length 144 [2023-12-24 16:45:38,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:38,546 INFO L495 AbstractCegarLoop]: Abstraction has 1581 states and 2102 transitions. [2023-12-24 16:45:38,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:38,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2102 transitions. [2023-12-24 16:45:38,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-24 16:45:38,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:38,547 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:38,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:38,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:38,753 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:38,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:38,753 INFO L85 PathProgramCache]: Analyzing trace with hash -804564494, now seen corresponding path program 1 times [2023-12-24 16:45:38,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:38,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006685394] [2023-12-24 16:45:38,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:38,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:38,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:38,754 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:38,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-24 16:45:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:38,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-24 16:45:38,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:39,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-24 16:45:39,273 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 5 proven. 303 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2023-12-24 16:45:39,273 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:39,357 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:39,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:39,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006685394] [2023-12-24 16:45:39,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006685394] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:39,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:39,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-12-24 16:45:39,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794498928] [2023-12-24 16:45:39,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:39,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:45:39,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:39,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:45:39,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:45:39,359 INFO L87 Difference]: Start difference. First operand 1581 states and 2102 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:39,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:39,485 INFO L93 Difference]: Finished difference Result 2795 states and 3724 transitions. [2023-12-24 16:45:39,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 16:45:39,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2023-12-24 16:45:39,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:39,489 INFO L225 Difference]: With dead ends: 2795 [2023-12-24 16:45:39,490 INFO L226 Difference]: Without dead ends: 1672 [2023-12-24 16:45:39,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:45:39,492 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 157 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:39,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 524 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:45:39,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2023-12-24 16:45:39,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1455. [2023-12-24 16:45:39,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1365 states have (on average 1.3164835164835165) internal successors, (1797), 1370 states have internal predecessors, (1797), 70 states have call successors, (70), 19 states have call predecessors, (70), 19 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-24 16:45:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1937 transitions. [2023-12-24 16:45:39,527 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1937 transitions. Word has length 144 [2023-12-24 16:45:39,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:39,528 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1937 transitions. [2023-12-24 16:45:39,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:39,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1937 transitions. [2023-12-24 16:45:39,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-24 16:45:39,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:39,529 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:39,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2023-12-24 16:45:39,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:39,734 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:39,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:39,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1197591504, now seen corresponding path program 1 times [2023-12-24 16:45:39,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:39,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702758377] [2023-12-24 16:45:39,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:39,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:39,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:39,736 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:39,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-24 16:45:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:40,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-24 16:45:40,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:44,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2023-12-24 16:45:44,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2023-12-24 16:45:44,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2023-12-24 16:45:44,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2023-12-24 16:45:44,950 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 13 proven. 418 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-12-24 16:45:44,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:46,219 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:46,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:46,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702758377] [2023-12-24 16:45:46,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702758377] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:46,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:46,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [36] total 43 [2023-12-24 16:45:46,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422094273] [2023-12-24 16:45:46,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:46,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 16:45:46,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:46,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 16:45:46,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1662, Unknown=0, NotChecked=0, Total=1806 [2023-12-24 16:45:46,221 INFO L87 Difference]: Start difference. First operand 1455 states and 1937 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:47,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:47,027 INFO L93 Difference]: Finished difference Result 2593 states and 3456 transitions. [2023-12-24 16:45:47,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 16:45:47,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2023-12-24 16:45:47,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:47,032 INFO L225 Difference]: With dead ends: 2593 [2023-12-24 16:45:47,032 INFO L226 Difference]: Without dead ends: 1596 [2023-12-24 16:45:47,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=169, Invalid=1901, Unknown=0, NotChecked=0, Total=2070 [2023-12-24 16:45:47,034 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 181 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:47,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 777 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-24 16:45:47,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2023-12-24 16:45:47,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1428. [2023-12-24 16:45:47,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1338 states have (on average 1.3161434977578474) internal successors, (1761), 1343 states have internal predecessors, (1761), 70 states have call successors, (70), 19 states have call predecessors, (70), 19 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-24 16:45:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1901 transitions. [2023-12-24 16:45:47,069 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1901 transitions. Word has length 144 [2023-12-24 16:45:47,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:47,069 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1901 transitions. [2023-12-24 16:45:47,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:47,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1901 transitions. [2023-12-24 16:45:47,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-24 16:45:47,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:47,070 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:47,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:47,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:47,275 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:47,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1292147354, now seen corresponding path program 1 times [2023-12-24 16:45:47,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:47,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63614087] [2023-12-24 16:45:47,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:47,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:47,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:47,277 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:47,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-24 16:45:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:47,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-24 16:45:47,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:51,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2023-12-24 16:45:51,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2023-12-24 16:45:51,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2023-12-24 16:45:52,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2023-12-24 16:45:52,597 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 13 proven. 418 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-12-24 16:45:52,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:53,940 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:53,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:53,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63614087] [2023-12-24 16:45:53,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63614087] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:53,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:53,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [36] total 43 [2023-12-24 16:45:53,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385298985] [2023-12-24 16:45:53,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:53,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 16:45:53,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:53,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 16:45:53,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1662, Unknown=0, NotChecked=0, Total=1806 [2023-12-24 16:45:53,942 INFO L87 Difference]: Start difference. First operand 1428 states and 1901 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:54,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:54,767 INFO L93 Difference]: Finished difference Result 2471 states and 3299 transitions. [2023-12-24 16:45:54,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 16:45:54,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2023-12-24 16:45:54,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:54,772 INFO L225 Difference]: With dead ends: 2471 [2023-12-24 16:45:54,772 INFO L226 Difference]: Without dead ends: 1501 [2023-12-24 16:45:54,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=169, Invalid=1901, Unknown=0, NotChecked=0, Total=2070 [2023-12-24 16:45:54,774 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 203 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:54,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 906 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-24 16:45:54,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2023-12-24 16:45:54,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1257. [2023-12-24 16:45:54,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1205 states have (on average 1.333609958506224) internal successors, (1607), 1206 states have internal predecessors, (1607), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-24 16:45:54,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1687 transitions. [2023-12-24 16:45:54,802 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1687 transitions. Word has length 144 [2023-12-24 16:45:54,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:54,802 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 1687 transitions. [2023-12-24 16:45:54,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:54,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1687 transitions. [2023-12-24 16:45:54,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-24 16:45:54,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:54,803 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:54,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:55,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:55,009 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:55,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:55,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1092411778, now seen corresponding path program 1 times [2023-12-24 16:45:55,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:55,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956240028] [2023-12-24 16:45:55,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:55,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:55,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:55,011 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:55,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-24 16:45:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:55,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-24 16:45:55,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:55,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-24 16:45:55,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-12-24 16:45:55,437 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:55,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:45:55,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:55,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956240028] [2023-12-24 16:45:55,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956240028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:45:55,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:45:55,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-24 16:45:55,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477106700] [2023-12-24 16:45:55,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:55,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 16:45:55,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:55,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 16:45:55,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-24 16:45:55,438 INFO L87 Difference]: Start difference. First operand 1257 states and 1687 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:55,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:55,952 INFO L93 Difference]: Finished difference Result 2629 states and 3455 transitions. [2023-12-24 16:45:55,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-24 16:45:55,953 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2023-12-24 16:45:55,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:55,958 INFO L225 Difference]: With dead ends: 2629 [2023-12-24 16:45:55,958 INFO L226 Difference]: Without dead ends: 1830 [2023-12-24 16:45:55,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-24 16:45:55,960 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 379 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:55,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1247 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-24 16:45:55,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2023-12-24 16:45:55,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1376. [2023-12-24 16:45:55,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1311 states have (on average 1.315026697177727) internal successors, (1724), 1313 states have internal predecessors, (1724), 50 states have call successors, (50), 14 states have call predecessors, (50), 14 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-24 16:45:55,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1824 transitions. [2023-12-24 16:45:55,995 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1824 transitions. Word has length 145 [2023-12-24 16:45:55,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:55,996 INFO L495 AbstractCegarLoop]: Abstraction has 1376 states and 1824 transitions. [2023-12-24 16:45:55,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:55,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1824 transitions. [2023-12-24 16:45:55,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-24 16:45:55,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:55,997 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:56,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:56,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:56,202 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:56,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:56,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1371331472, now seen corresponding path program 1 times [2023-12-24 16:45:56,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:56,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773543493] [2023-12-24 16:45:56,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:56,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:56,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:56,204 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:56,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-24 16:45:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:56,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:45:56,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:56,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2023-12-24 16:45:56,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-12-24 16:45:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 11 proven. 321 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-12-24 16:45:56,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:56,977 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:56,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:56,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773543493] [2023-12-24 16:45:56,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773543493] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:56,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:56,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-12-24 16:45:56,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219267829] [2023-12-24 16:45:56,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:56,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:45:56,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:56,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:45:56,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:45:56,979 INFO L87 Difference]: Start difference. First operand 1376 states and 1824 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:57,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:57,134 INFO L93 Difference]: Finished difference Result 2893 states and 3847 transitions. [2023-12-24 16:45:57,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 16:45:57,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2023-12-24 16:45:57,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:57,141 INFO L225 Difference]: With dead ends: 2893 [2023-12-24 16:45:57,142 INFO L226 Difference]: Without dead ends: 2053 [2023-12-24 16:45:57,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-24 16:45:57,143 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 72 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:57,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 548 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:45:57,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2023-12-24 16:45:57,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 2029. [2023-12-24 16:45:57,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 1940 states have (on average 1.306701030927835) internal successors, (2535), 1945 states have internal predecessors, (2535), 66 states have call successors, (66), 22 states have call predecessors, (66), 22 states have return successors, (66), 61 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-24 16:45:57,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 2667 transitions. [2023-12-24 16:45:57,196 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 2667 transitions. Word has length 146 [2023-12-24 16:45:57,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:57,196 INFO L495 AbstractCegarLoop]: Abstraction has 2029 states and 2667 transitions. [2023-12-24 16:45:57,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:57,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 2667 transitions. [2023-12-24 16:45:57,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-24 16:45:57,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:57,198 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:57,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:57,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:57,403 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:57,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:57,403 INFO L85 PathProgramCache]: Analyzing trace with hash 561984846, now seen corresponding path program 1 times [2023-12-24 16:45:57,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:57,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118081025] [2023-12-24 16:45:57,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:57,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:57,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:57,405 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:57,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-24 16:45:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:57,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-24 16:45:57,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:57,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-12-24 16:45:57,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-12-24 16:45:57,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2023-12-24 16:45:57,921 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2023-12-24 16:45:57,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:58,054 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:58,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:58,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118081025] [2023-12-24 16:45:58,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118081025] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:58,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:58,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 14 [2023-12-24 16:45:58,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121269219] [2023-12-24 16:45:58,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:58,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-24 16:45:58,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:58,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-24 16:45:58,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-24 16:45:58,055 INFO L87 Difference]: Start difference. First operand 2029 states and 2667 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:58,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:58,367 INFO L93 Difference]: Finished difference Result 3277 states and 4360 transitions. [2023-12-24 16:45:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-24 16:45:58,376 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2023-12-24 16:45:58,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:58,381 INFO L225 Difference]: With dead ends: 3277 [2023-12-24 16:45:58,381 INFO L226 Difference]: Without dead ends: 2047 [2023-12-24 16:45:58,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 277 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2023-12-24 16:45:58,383 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 89 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:58,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1355 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 16:45:58,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2023-12-24 16:45:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 2043. [2023-12-24 16:45:58,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 1948 states have (on average 1.303388090349076) internal successors, (2539), 1953 states have internal predecessors, (2539), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-24 16:45:58,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2679 transitions. [2023-12-24 16:45:58,433 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2679 transitions. Word has length 146 [2023-12-24 16:45:58,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:58,433 INFO L495 AbstractCegarLoop]: Abstraction has 2043 states and 2679 transitions. [2023-12-24 16:45:58,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:58,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2679 transitions. [2023-12-24 16:45:58,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-24 16:45:58,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:58,435 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:58,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-24 16:45:58,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:58,640 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:58,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:58,640 INFO L85 PathProgramCache]: Analyzing trace with hash -14871922, now seen corresponding path program 1 times [2023-12-24 16:45:58,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:58,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140473458] [2023-12-24 16:45:58,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:58,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:58,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:58,642 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:58,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-24 16:45:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:45:58,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-24 16:45:58,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:45:58,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-12-24 16:45:59,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-12-24 16:45:59,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2023-12-24 16:45:59,068 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-12-24 16:45:59,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:45:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:45:59,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:45:59,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140473458] [2023-12-24 16:45:59,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140473458] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:45:59,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:45:59,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 14 [2023-12-24 16:45:59,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574468566] [2023-12-24 16:45:59,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:45:59,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-24 16:45:59,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:45:59,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-24 16:45:59,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-24 16:45:59,187 INFO L87 Difference]: Start difference. First operand 2043 states and 2679 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:59,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:45:59,524 INFO L93 Difference]: Finished difference Result 3375 states and 4469 transitions. [2023-12-24 16:45:59,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-24 16:45:59,524 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2023-12-24 16:45:59,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:45:59,528 INFO L225 Difference]: With dead ends: 3375 [2023-12-24 16:45:59,528 INFO L226 Difference]: Without dead ends: 2141 [2023-12-24 16:45:59,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 277 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2023-12-24 16:45:59,530 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 93 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 16:45:59,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1322 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 16:45:59,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2141 states. [2023-12-24 16:45:59,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2141 to 2132. [2023-12-24 16:45:59,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 2014 states have (on average 1.294438927507448) internal successors, (2607), 2022 states have internal predecessors, (2607), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:45:59,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2779 transitions. [2023-12-24 16:45:59,616 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2779 transitions. Word has length 146 [2023-12-24 16:45:59,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:45:59,616 INFO L495 AbstractCegarLoop]: Abstraction has 2132 states and 2779 transitions. [2023-12-24 16:45:59,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:45:59,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2779 transitions. [2023-12-24 16:45:59,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-24 16:45:59,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:45:59,618 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:45:59,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-24 16:45:59,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:59,823 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:45:59,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:45:59,823 INFO L85 PathProgramCache]: Analyzing trace with hash -824218548, now seen corresponding path program 1 times [2023-12-24 16:45:59,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:45:59,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831547891] [2023-12-24 16:45:59,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:45:59,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:45:59,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:45:59,825 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:45:59,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-24 16:46:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:00,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:46:00,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:00,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2023-12-24 16:46:00,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-12-24 16:46:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 11 proven. 321 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-12-24 16:46:00,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:46:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:46:00,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:00,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831547891] [2023-12-24 16:46:00,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831547891] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:46:00,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:46:00,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-12-24 16:46:00,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371354466] [2023-12-24 16:46:00,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:00,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:46:00,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:00,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:46:00,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:46:00,593 INFO L87 Difference]: Start difference. First operand 2132 states and 2779 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:00,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:00,761 INFO L93 Difference]: Finished difference Result 3424 states and 4519 transitions. [2023-12-24 16:46:00,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 16:46:00,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2023-12-24 16:46:00,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:00,766 INFO L225 Difference]: With dead ends: 3424 [2023-12-24 16:46:00,767 INFO L226 Difference]: Without dead ends: 2122 [2023-12-24 16:46:00,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-24 16:46:00,768 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 65 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:00,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 589 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:46:00,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2023-12-24 16:46:00,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2118. [2023-12-24 16:46:00,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2118 states, 2000 states have (on average 1.293) internal successors, (2586), 2008 states have internal predecessors, (2586), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:00,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2118 states to 2118 states and 2758 transitions. [2023-12-24 16:46:00,829 INFO L78 Accepts]: Start accepts. Automaton has 2118 states and 2758 transitions. Word has length 146 [2023-12-24 16:46:00,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:00,829 INFO L495 AbstractCegarLoop]: Abstraction has 2118 states and 2758 transitions. [2023-12-24 16:46:00,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:00,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2118 states and 2758 transitions. [2023-12-24 16:46:00,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-24 16:46:00,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:00,835 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:00,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-24 16:46:01,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:01,040 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:01,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:01,041 INFO L85 PathProgramCache]: Analyzing trace with hash -792815113, now seen corresponding path program 1 times [2023-12-24 16:46:01,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:01,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907035336] [2023-12-24 16:46:01,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:01,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:01,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:01,042 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:01,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-24 16:46:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:01,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-24 16:46:01,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:01,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-12-24 16:46:01,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-12-24 16:46:01,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2023-12-24 16:46:01,488 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-12-24 16:46:01,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:46:01,629 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:46:01,629 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:01,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907035336] [2023-12-24 16:46:01,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907035336] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:46:01,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:46:01,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 16 [2023-12-24 16:46:01,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292394887] [2023-12-24 16:46:01,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:01,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-24 16:46:01,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:01,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-24 16:46:01,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-24 16:46:01,630 INFO L87 Difference]: Start difference. First operand 2118 states and 2758 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:02,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:02,207 INFO L93 Difference]: Finished difference Result 4413 states and 5709 transitions. [2023-12-24 16:46:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-24 16:46:02,208 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2023-12-24 16:46:02,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:02,212 INFO L225 Difference]: With dead ends: 4413 [2023-12-24 16:46:02,213 INFO L226 Difference]: Without dead ends: 3164 [2023-12-24 16:46:02,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 277 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=171, Invalid=759, Unknown=0, NotChecked=0, Total=930 [2023-12-24 16:46:02,215 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 200 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:02,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1449 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 16:46:02,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2023-12-24 16:46:02,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 2568. [2023-12-24 16:46:02,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 2450 states have (on average 1.3044897959183674) internal successors, (3196), 2458 states have internal predecessors, (3196), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 3368 transitions. [2023-12-24 16:46:02,282 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 3368 transitions. Word has length 147 [2023-12-24 16:46:02,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:02,283 INFO L495 AbstractCegarLoop]: Abstraction has 2568 states and 3368 transitions. [2023-12-24 16:46:02,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:02,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 3368 transitions. [2023-12-24 16:46:02,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-24 16:46:02,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:02,285 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:02,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-24 16:46:02,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:02,490 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:02,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:02,490 INFO L85 PathProgramCache]: Analyzing trace with hash -91750535, now seen corresponding path program 1 times [2023-12-24 16:46:02,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:02,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683990221] [2023-12-24 16:46:02,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:02,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:02,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:02,492 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:02,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-24 16:46:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:02,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-24 16:46:02,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:02,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-12-24 16:46:02,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-12-24 16:46:02,786 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:46:02,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:46:02,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:02,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683990221] [2023-12-24 16:46:02,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683990221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:46:02,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:46:02,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 16:46:02,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442433699] [2023-12-24 16:46:02,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:02,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:46:02,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:02,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:46:02,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 16:46:02,788 INFO L87 Difference]: Start difference. First operand 2568 states and 3368 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:03,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:03,133 INFO L93 Difference]: Finished difference Result 4537 states and 5943 transitions. [2023-12-24 16:46:03,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 16:46:03,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2023-12-24 16:46:03,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:03,137 INFO L225 Difference]: With dead ends: 4537 [2023-12-24 16:46:03,137 INFO L226 Difference]: Without dead ends: 2964 [2023-12-24 16:46:03,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-24 16:46:03,139 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 87 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:03,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 649 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 16:46:03,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2023-12-24 16:46:03,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2558. [2023-12-24 16:46:03,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2440 states have (on average 1.3008196721311476) internal successors, (3174), 2448 states have internal predecessors, (3174), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:03,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3346 transitions. [2023-12-24 16:46:03,203 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3346 transitions. Word has length 147 [2023-12-24 16:46:03,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:03,203 INFO L495 AbstractCegarLoop]: Abstraction has 2558 states and 3346 transitions. [2023-12-24 16:46:03,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:03,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3346 transitions. [2023-12-24 16:46:03,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-24 16:46:03,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:03,205 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:03,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-24 16:46:03,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:03,410 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:03,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:03,410 INFO L85 PathProgramCache]: Analyzing trace with hash -730775499, now seen corresponding path program 1 times [2023-12-24 16:46:03,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:03,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940550773] [2023-12-24 16:46:03,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:03,411 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:03,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:03,412 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:03,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-24 16:46:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:03,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-24 16:46:03,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:03,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-12-24 16:46:03,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-12-24 16:46:03,764 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:46:03,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:46:03,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:03,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940550773] [2023-12-24 16:46:03,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940550773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:46:03,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:46:03,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 16:46:03,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303518217] [2023-12-24 16:46:03,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:03,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:46:03,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:03,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:46:03,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 16:46:03,766 INFO L87 Difference]: Start difference. First operand 2558 states and 3346 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:04,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:04,081 INFO L93 Difference]: Finished difference Result 4827 states and 6323 transitions. [2023-12-24 16:46:04,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 16:46:04,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2023-12-24 16:46:04,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:04,086 INFO L225 Difference]: With dead ends: 4827 [2023-12-24 16:46:04,086 INFO L226 Difference]: Without dead ends: 3264 [2023-12-24 16:46:04,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-24 16:46:04,088 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 94 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:04,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 584 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 16:46:04,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3264 states. [2023-12-24 16:46:04,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3264 to 2742. [2023-12-24 16:46:04,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2742 states, 2624 states have (on average 1.3094512195121952) internal successors, (3436), 2632 states have internal predecessors, (3436), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 3608 transitions. [2023-12-24 16:46:04,155 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 3608 transitions. Word has length 147 [2023-12-24 16:46:04,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:04,155 INFO L495 AbstractCegarLoop]: Abstraction has 2742 states and 3608 transitions. [2023-12-24 16:46:04,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:04,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 3608 transitions. [2023-12-24 16:46:04,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-24 16:46:04,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:04,157 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:04,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2023-12-24 16:46:04,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:04,362 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:04,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:04,362 INFO L85 PathProgramCache]: Analyzing trace with hash -29710921, now seen corresponding path program 1 times [2023-12-24 16:46:04,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:04,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371990281] [2023-12-24 16:46:04,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:04,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:04,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:04,364 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:04,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-24 16:46:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:04,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-24 16:46:04,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:04,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-12-24 16:46:04,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-12-24 16:46:04,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2023-12-24 16:46:04,817 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2023-12-24 16:46:04,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:46:04,946 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-24 16:46:04,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:04,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371990281] [2023-12-24 16:46:04,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371990281] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:46:04,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:46:04,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 16 [2023-12-24 16:46:04,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864147016] [2023-12-24 16:46:04,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:04,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-24 16:46:04,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:04,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-24 16:46:04,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-24 16:46:04,948 INFO L87 Difference]: Start difference. First operand 2742 states and 3608 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:05,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:05,509 INFO L93 Difference]: Finished difference Result 4974 states and 6518 transitions. [2023-12-24 16:46:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-24 16:46:05,509 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2023-12-24 16:46:05,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:05,513 INFO L225 Difference]: With dead ends: 4974 [2023-12-24 16:46:05,513 INFO L226 Difference]: Without dead ends: 3227 [2023-12-24 16:46:05,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 277 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2023-12-24 16:46:05,516 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 164 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:05,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1526 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 16:46:05,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2023-12-24 16:46:05,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 2806. [2023-12-24 16:46:05,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2688 states have (on average 1.3050595238095237) internal successors, (3508), 2696 states have internal predecessors, (3508), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:05,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3680 transitions. [2023-12-24 16:46:05,585 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3680 transitions. Word has length 147 [2023-12-24 16:46:05,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:05,585 INFO L495 AbstractCegarLoop]: Abstraction has 2806 states and 3680 transitions. [2023-12-24 16:46:05,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:05,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3680 transitions. [2023-12-24 16:46:05,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-24 16:46:05,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:05,590 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:05,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-12-24 16:46:05,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:05,795 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:05,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:05,795 INFO L85 PathProgramCache]: Analyzing trace with hash -2077730421, now seen corresponding path program 1 times [2023-12-24 16:46:05,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:05,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243024910] [2023-12-24 16:46:05,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:05,796 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:05,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:05,797 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:05,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-24 16:46:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:06,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 16:46:06,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:06,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-24 16:46:06,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2575 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2558 trivial. 0 not checked. [2023-12-24 16:46:06,217 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:46:06,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:06,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243024910] [2023-12-24 16:46:06,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243024910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:46:06,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:46:06,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 16:46:06,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817575896] [2023-12-24 16:46:06,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:06,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:46:06,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:06,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:46:06,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 16:46:06,220 INFO L87 Difference]: Start difference. First operand 2806 states and 3680 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:06,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:06,364 INFO L93 Difference]: Finished difference Result 5463 states and 7182 transitions. [2023-12-24 16:46:06,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 16:46:06,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 270 [2023-12-24 16:46:06,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:06,370 INFO L225 Difference]: With dead ends: 5463 [2023-12-24 16:46:06,370 INFO L226 Difference]: Without dead ends: 3652 [2023-12-24 16:46:06,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-24 16:46:06,372 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 105 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:06,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 646 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:46:06,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2023-12-24 16:46:06,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 2866. [2023-12-24 16:46:06,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2748 states have (on average 1.2983988355167395) internal successors, (3568), 2756 states have internal predecessors, (3568), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:06,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 3740 transitions. [2023-12-24 16:46:06,440 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 3740 transitions. Word has length 270 [2023-12-24 16:46:06,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:06,440 INFO L495 AbstractCegarLoop]: Abstraction has 2866 states and 3740 transitions. [2023-12-24 16:46:06,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:06,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 3740 transitions. [2023-12-24 16:46:06,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-12-24 16:46:06,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:06,445 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:06,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-24 16:46:06,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:06,652 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:06,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:06,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1702104795, now seen corresponding path program 1 times [2023-12-24 16:46:06,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:06,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648898342] [2023-12-24 16:46:06,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:06,653 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:06,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:06,654 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:06,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-24 16:46:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:07,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 16:46:07,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:07,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2577 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2558 trivial. 0 not checked. [2023-12-24 16:46:07,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:46:07,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:07,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648898342] [2023-12-24 16:46:07,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648898342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:46:07,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:46:07,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 16:46:07,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969330448] [2023-12-24 16:46:07,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:07,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 16:46:07,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:07,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 16:46:07,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 16:46:07,031 INFO L87 Difference]: Start difference. First operand 2866 states and 3740 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:07,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:07,109 INFO L93 Difference]: Finished difference Result 5075 states and 6674 transitions. [2023-12-24 16:46:07,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 16:46:07,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 272 [2023-12-24 16:46:07,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:07,114 INFO L225 Difference]: With dead ends: 5075 [2023-12-24 16:46:07,114 INFO L226 Difference]: Without dead ends: 3144 [2023-12-24 16:46:07,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 16:46:07,117 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 58 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:07,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 234 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 16:46:07,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2023-12-24 16:46:07,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2854. [2023-12-24 16:46:07,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2854 states, 2736 states have (on average 1.2755847953216375) internal successors, (3490), 2744 states have internal predecessors, (3490), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:07,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 3662 transitions. [2023-12-24 16:46:07,185 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 3662 transitions. Word has length 272 [2023-12-24 16:46:07,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:07,186 INFO L495 AbstractCegarLoop]: Abstraction has 2854 states and 3662 transitions. [2023-12-24 16:46:07,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:07,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 3662 transitions. [2023-12-24 16:46:07,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-12-24 16:46:07,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:07,190 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:07,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-24 16:46:07,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:07,397 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:07,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:07,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1534358131, now seen corresponding path program 1 times [2023-12-24 16:46:07,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:07,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396464412] [2023-12-24 16:46:07,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:07,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:07,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:07,399 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:07,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-24 16:46:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:07,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:46:07,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 23 proven. 1388 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2023-12-24 16:46:08,383 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:46:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2564 trivial. 0 not checked. [2023-12-24 16:46:08,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:08,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396464412] [2023-12-24 16:46:08,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396464412] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:46:08,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:46:08,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-12-24 16:46:08,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653143405] [2023-12-24 16:46:08,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:08,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:46:08,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:08,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:46:08,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:46:08,478 INFO L87 Difference]: Start difference. First operand 2854 states and 3662 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:08,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:08,586 INFO L93 Difference]: Finished difference Result 5091 states and 6531 transitions. [2023-12-24 16:46:08,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 16:46:08,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 274 [2023-12-24 16:46:08,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:08,598 INFO L225 Difference]: With dead ends: 5091 [2023-12-24 16:46:08,598 INFO L226 Difference]: Without dead ends: 3220 [2023-12-24 16:46:08,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:46:08,601 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 159 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:08,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 425 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 16:46:08,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2023-12-24 16:46:08,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 2848. [2023-12-24 16:46:08,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2730 states have (on average 1.2695970695970695) internal successors, (3466), 2738 states have internal predecessors, (3466), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:08,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 3638 transitions. [2023-12-24 16:46:08,670 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 3638 transitions. Word has length 274 [2023-12-24 16:46:08,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:08,670 INFO L495 AbstractCegarLoop]: Abstraction has 2848 states and 3638 transitions. [2023-12-24 16:46:08,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:08,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 3638 transitions. [2023-12-24 16:46:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-12-24 16:46:08,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:08,674 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:08,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-24 16:46:08,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:08,884 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:08,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:08,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1069558679, now seen corresponding path program 1 times [2023-12-24 16:46:08,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:08,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949647413] [2023-12-24 16:46:08,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:08,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:08,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:08,886 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:08,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-24 16:46:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:09,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 16:46:09,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:09,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2558 trivial. 0 not checked. [2023-12-24 16:46:09,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:46:09,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:09,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949647413] [2023-12-24 16:46:09,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949647413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:46:09,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:46:09,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 16:46:09,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011646266] [2023-12-24 16:46:09,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:09,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 16:46:09,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:09,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 16:46:09,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 16:46:09,325 INFO L87 Difference]: Start difference. First operand 2848 states and 3638 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:09,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:09,404 INFO L93 Difference]: Finished difference Result 4605 states and 5856 transitions. [2023-12-24 16:46:09,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 16:46:09,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 275 [2023-12-24 16:46:09,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:09,408 INFO L225 Difference]: With dead ends: 4605 [2023-12-24 16:46:09,408 INFO L226 Difference]: Without dead ends: 2740 [2023-12-24 16:46:09,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 16:46:09,410 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 47 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:09,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 296 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 16:46:09,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2023-12-24 16:46:09,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2638. [2023-12-24 16:46:09,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2638 states, 2520 states have (on average 1.2373015873015873) internal successors, (3118), 2528 states have internal predecessors, (3118), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:09,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 3290 transitions. [2023-12-24 16:46:09,477 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 3290 transitions. Word has length 275 [2023-12-24 16:46:09,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:09,477 INFO L495 AbstractCegarLoop]: Abstraction has 2638 states and 3290 transitions. [2023-12-24 16:46:09,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:09,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 3290 transitions. [2023-12-24 16:46:09,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-24 16:46:09,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:09,481 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:09,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-24 16:46:09,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:09,688 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:09,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:09,688 INFO L85 PathProgramCache]: Analyzing trace with hash -498275057, now seen corresponding path program 1 times [2023-12-24 16:46:09,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:09,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105475488] [2023-12-24 16:46:09,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:09,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:09,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:09,690 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:09,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-24 16:46:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:10,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 16:46:10,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:10,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2023-12-24 16:46:10,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2023-12-24 16:46:10,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2023-12-24 16:46:10,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 73 [2023-12-24 16:46:10,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2023-12-24 16:46:10,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:46:10,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:10,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105475488] [2023-12-24 16:46:10,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105475488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:46:10,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:46:10,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 16:46:10,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431179249] [2023-12-24 16:46:10,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:10,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 16:46:10,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:10,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 16:46:10,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-24 16:46:10,239 INFO L87 Difference]: Start difference. First operand 2638 states and 3290 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:10,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:10,411 INFO L93 Difference]: Finished difference Result 4828 states and 5983 transitions. [2023-12-24 16:46:10,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 16:46:10,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 277 [2023-12-24 16:46:10,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:10,414 INFO L225 Difference]: With dead ends: 4828 [2023-12-24 16:46:10,415 INFO L226 Difference]: Without dead ends: 3173 [2023-12-24 16:46:10,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-24 16:46:10,417 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 164 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:10,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 585 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:46:10,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2023-12-24 16:46:10,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 2638. [2023-12-24 16:46:10,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2638 states, 2520 states have (on average 1.2373015873015873) internal successors, (3118), 2528 states have internal predecessors, (3118), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:10,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 3290 transitions. [2023-12-24 16:46:10,498 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 3290 transitions. Word has length 277 [2023-12-24 16:46:10,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:10,499 INFO L495 AbstractCegarLoop]: Abstraction has 2638 states and 3290 transitions. [2023-12-24 16:46:10,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:10,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 3290 transitions. [2023-12-24 16:46:10,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-24 16:46:10,502 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:10,502 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:10,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2023-12-24 16:46:10,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:10,712 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:10,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:10,713 INFO L85 PathProgramCache]: Analyzing trace with hash 202789521, now seen corresponding path program 1 times [2023-12-24 16:46:10,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:10,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828281869] [2023-12-24 16:46:10,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:10,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:10,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:10,715 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:10,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-24 16:46:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:11,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-24 16:46:11,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:11,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 21 proven. 1274 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2023-12-24 16:46:11,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:46:11,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2557 trivial. 0 not checked. [2023-12-24 16:46:11,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:11,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828281869] [2023-12-24 16:46:11,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828281869] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:46:11,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:46:11,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-12-24 16:46:11,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493311701] [2023-12-24 16:46:11,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:11,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:46:11,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:11,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:46:11,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:46:11,852 INFO L87 Difference]: Start difference. First operand 2638 states and 3290 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:11,961 INFO L93 Difference]: Finished difference Result 5030 states and 6185 transitions. [2023-12-24 16:46:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 16:46:11,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 277 [2023-12-24 16:46:11,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:11,965 INFO L225 Difference]: With dead ends: 5030 [2023-12-24 16:46:11,965 INFO L226 Difference]: Without dead ends: 3303 [2023-12-24 16:46:11,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:46:11,968 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 169 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:11,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 502 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 16:46:11,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2023-12-24 16:46:12,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 2614. [2023-12-24 16:46:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2614 states, 2496 states have (on average 1.220352564102564) internal successors, (3046), 2504 states have internal predecessors, (3046), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:12,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2614 states to 2614 states and 3218 transitions. [2023-12-24 16:46:12,060 INFO L78 Accepts]: Start accepts. Automaton has 2614 states and 3218 transitions. Word has length 277 [2023-12-24 16:46:12,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:12,060 INFO L495 AbstractCegarLoop]: Abstraction has 2614 states and 3218 transitions. [2023-12-24 16:46:12,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:12,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2614 states and 3218 transitions. [2023-12-24 16:46:12,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-24 16:46:12,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:12,064 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:12,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-24 16:46:12,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:12,272 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:12,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:12,272 INFO L85 PathProgramCache]: Analyzing trace with hash 460954959, now seen corresponding path program 1 times [2023-12-24 16:46:12,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:12,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330543497] [2023-12-24 16:46:12,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:12,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:12,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:12,274 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:12,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-24 16:46:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:12,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-24 16:46:12,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:13,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 26 proven. 1389 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2023-12-24 16:46:13,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:46:13,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2558 trivial. 0 not checked. [2023-12-24 16:46:13,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:13,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330543497] [2023-12-24 16:46:13,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330543497] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:46:13,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:46:13,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2023-12-24 16:46:13,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956554348] [2023-12-24 16:46:13,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:13,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 16:46:13,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:13,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 16:46:13,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:46:13,388 INFO L87 Difference]: Start difference. First operand 2614 states and 3218 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:13,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:13,526 INFO L93 Difference]: Finished difference Result 5186 states and 6289 transitions. [2023-12-24 16:46:13,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 16:46:13,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 277 [2023-12-24 16:46:13,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:13,530 INFO L225 Difference]: With dead ends: 5186 [2023-12-24 16:46:13,530 INFO L226 Difference]: Without dead ends: 3118 [2023-12-24 16:46:13,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-12-24 16:46:13,536 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 184 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:13,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 601 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:46:13,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2023-12-24 16:46:13,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 2428. [2023-12-24 16:46:13,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 2310 states have (on average 1.158008658008658) internal successors, (2675), 2318 states have internal predecessors, (2675), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:13,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 2847 transitions. [2023-12-24 16:46:13,612 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 2847 transitions. Word has length 277 [2023-12-24 16:46:13,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:13,612 INFO L495 AbstractCegarLoop]: Abstraction has 2428 states and 2847 transitions. [2023-12-24 16:46:13,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:13,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 2847 transitions. [2023-12-24 16:46:13,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-24 16:46:13,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:13,616 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:13,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-24 16:46:13,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:13,823 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:13,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:13,823 INFO L85 PathProgramCache]: Analyzing trace with hash 68776015, now seen corresponding path program 1 times [2023-12-24 16:46:13,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:13,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574239420] [2023-12-24 16:46:13,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:13,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:13,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:13,825 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:13,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-24 16:46:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:14,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 16:46:14,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:14,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-24 16:46:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2023-12-24 16:46:14,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:46:14,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:14,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574239420] [2023-12-24 16:46:14,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574239420] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:46:14,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:46:14,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 16:46:14,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977695722] [2023-12-24 16:46:14,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:14,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 16:46:14,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:14,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 16:46:14,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-24 16:46:14,276 INFO L87 Difference]: Start difference. First operand 2428 states and 2847 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:14,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:14,434 INFO L93 Difference]: Finished difference Result 4538 states and 5304 transitions. [2023-12-24 16:46:14,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-24 16:46:14,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 277 [2023-12-24 16:46:14,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:14,437 INFO L225 Difference]: With dead ends: 4538 [2023-12-24 16:46:14,437 INFO L226 Difference]: Without dead ends: 2847 [2023-12-24 16:46:14,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:46:14,439 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 180 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:14,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 804 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:46:14,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2023-12-24 16:46:14,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2242. [2023-12-24 16:46:14,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2242 states, 2124 states have (on average 1.1577212806026365) internal successors, (2459), 2132 states have internal predecessors, (2459), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:14,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 2631 transitions. [2023-12-24 16:46:14,500 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 2631 transitions. Word has length 277 [2023-12-24 16:46:14,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:14,500 INFO L495 AbstractCegarLoop]: Abstraction has 2242 states and 2631 transitions. [2023-12-24 16:46:14,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:14,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 2631 transitions. [2023-12-24 16:46:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-24 16:46:14,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:14,503 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:14,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2023-12-24 16:46:14,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:14,704 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:14,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:14,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1584531025, now seen corresponding path program 1 times [2023-12-24 16:46:14,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:14,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202520465] [2023-12-24 16:46:14,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:14,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:14,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:14,706 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:14,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-24 16:46:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:15,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-24 16:46:15,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:15,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 24 proven. 1347 refuted. 0 times theorem prover too weak. 1211 trivial. 0 not checked. [2023-12-24 16:46:15,701 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:46:15,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2559 trivial. 0 not checked. [2023-12-24 16:46:15,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:15,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202520465] [2023-12-24 16:46:15,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202520465] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:46:15,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:46:15,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2023-12-24 16:46:15,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400356932] [2023-12-24 16:46:15,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:15,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 16:46:15,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:15,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 16:46:15,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-12-24 16:46:15,794 INFO L87 Difference]: Start difference. First operand 2242 states and 2631 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:15,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:15,936 INFO L93 Difference]: Finished difference Result 4278 states and 4961 transitions. [2023-12-24 16:46:15,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 16:46:15,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 277 [2023-12-24 16:46:15,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:15,939 INFO L225 Difference]: With dead ends: 4278 [2023-12-24 16:46:15,939 INFO L226 Difference]: Without dead ends: 2563 [2023-12-24 16:46:15,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2023-12-24 16:46:15,941 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 148 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:15,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 705 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:46:15,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2023-12-24 16:46:15,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2080. [2023-12-24 16:46:15,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2080 states, 1962 states have (on average 1.146788990825688) internal successors, (2250), 1970 states have internal predecessors, (2250), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:16,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2422 transitions. [2023-12-24 16:46:16,001 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2422 transitions. Word has length 277 [2023-12-24 16:46:16,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:16,002 INFO L495 AbstractCegarLoop]: Abstraction has 2080 states and 2422 transitions. [2023-12-24 16:46:16,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:16,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2422 transitions. [2023-12-24 16:46:16,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-24 16:46:16,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:16,005 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:16,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-24 16:46:16,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:16,212 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:16,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:16,213 INFO L85 PathProgramCache]: Analyzing trace with hash 491287503, now seen corresponding path program 1 times [2023-12-24 16:46:16,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:16,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027047758] [2023-12-24 16:46:16,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:16,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:16,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:16,214 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:16,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-24 16:46:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:16,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-24 16:46:16,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:18,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2023-12-24 16:46:18,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 22 proven. 1449 refuted. 0 times theorem prover too weak. 1111 trivial. 0 not checked. [2023-12-24 16:46:18,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:46:18,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2557 trivial. 0 not checked. [2023-12-24 16:46:18,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:18,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027047758] [2023-12-24 16:46:18,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027047758] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:46:18,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:46:18,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 23 [2023-12-24 16:46:18,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546854955] [2023-12-24 16:46:18,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:18,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 16:46:18,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:18,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 16:46:18,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2023-12-24 16:46:18,727 INFO L87 Difference]: Start difference. First operand 2080 states and 2422 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:18,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:18,997 INFO L93 Difference]: Finished difference Result 4293 states and 4927 transitions. [2023-12-24 16:46:18,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-24 16:46:18,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 277 [2023-12-24 16:46:18,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:19,000 INFO L225 Difference]: With dead ends: 4293 [2023-12-24 16:46:19,000 INFO L226 Difference]: Without dead ends: 2644 [2023-12-24 16:46:19,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2023-12-24 16:46:19,002 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 315 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:19,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 708 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:46:19,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2644 states. [2023-12-24 16:46:19,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2644 to 1990. [2023-12-24 16:46:19,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1872 states have (on average 1.141025641025641) internal successors, (2136), 1880 states have internal predecessors, (2136), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:19,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2308 transitions. [2023-12-24 16:46:19,068 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2308 transitions. Word has length 277 [2023-12-24 16:46:19,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:19,068 INFO L495 AbstractCegarLoop]: Abstraction has 1990 states and 2308 transitions. [2023-12-24 16:46:19,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2308 transitions. [2023-12-24 16:46:19,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-24 16:46:19,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:19,071 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:19,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2023-12-24 16:46:19,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:19,272 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:19,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:19,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1502857203, now seen corresponding path program 1 times [2023-12-24 16:46:19,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:19,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561925911] [2023-12-24 16:46:19,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:19,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:19,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:19,274 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:19,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-24 16:46:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:19,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-24 16:46:19,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:20,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 24 proven. 1347 refuted. 0 times theorem prover too weak. 1211 trivial. 0 not checked. [2023-12-24 16:46:20,294 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:46:20,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2582 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2565 trivial. 0 not checked. [2023-12-24 16:46:20,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:20,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561925911] [2023-12-24 16:46:20,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561925911] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:46:20,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:46:20,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 12 [2023-12-24 16:46:20,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521164934] [2023-12-24 16:46:20,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:20,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 16:46:20,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:20,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 16:46:20,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:46:20,371 INFO L87 Difference]: Start difference. First operand 1990 states and 2308 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:20,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:20,519 INFO L93 Difference]: Finished difference Result 4028 states and 4601 transitions. [2023-12-24 16:46:20,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 16:46:20,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 277 [2023-12-24 16:46:20,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:20,522 INFO L225 Difference]: With dead ends: 4028 [2023-12-24 16:46:20,522 INFO L226 Difference]: Without dead ends: 2385 [2023-12-24 16:46:20,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-12-24 16:46:20,524 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 139 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:20,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 556 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:46:20,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2023-12-24 16:46:20,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 1875. [2023-12-24 16:46:20,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1757 states have (on average 1.1229368241320432) internal successors, (1973), 1765 states have internal predecessors, (1973), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:20,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2145 transitions. [2023-12-24 16:46:20,586 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2145 transitions. Word has length 277 [2023-12-24 16:46:20,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:20,587 INFO L495 AbstractCegarLoop]: Abstraction has 1875 states and 2145 transitions. [2023-12-24 16:46:20,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:20,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2145 transitions. [2023-12-24 16:46:20,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-24 16:46:20,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:20,590 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:20,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2023-12-24 16:46:20,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:20,790 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:20,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:20,791 INFO L85 PathProgramCache]: Analyzing trace with hash 242712922, now seen corresponding path program 1 times [2023-12-24 16:46:20,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:20,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432794035] [2023-12-24 16:46:20,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:20,791 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:20,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:20,792 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:20,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-12-24 16:46:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:21,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 16:46:21,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:21,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 23 proven. 1388 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2023-12-24 16:46:21,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:46:21,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2564 trivial. 0 not checked. [2023-12-24 16:46:21,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:21,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432794035] [2023-12-24 16:46:21,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432794035] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:46:21,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:46:21,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-12-24 16:46:21,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370221530] [2023-12-24 16:46:21,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:21,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:46:21,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:21,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:46:21,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-24 16:46:21,817 INFO L87 Difference]: Start difference. First operand 1875 states and 2145 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:21,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:21,941 INFO L93 Difference]: Finished difference Result 3624 states and 4119 transitions. [2023-12-24 16:46:21,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 16:46:21,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 278 [2023-12-24 16:46:21,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:21,944 INFO L225 Difference]: With dead ends: 3624 [2023-12-24 16:46:21,944 INFO L226 Difference]: Without dead ends: 2071 [2023-12-24 16:46:21,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:46:21,946 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 40 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:21,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 503 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:46:21,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2023-12-24 16:46:22,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 1869. [2023-12-24 16:46:22,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1869 states, 1751 states have (on average 1.1199314677327241) internal successors, (1961), 1759 states have internal predecessors, (1961), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:22,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 2133 transitions. [2023-12-24 16:46:22,010 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 2133 transitions. Word has length 278 [2023-12-24 16:46:22,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:22,011 INFO L495 AbstractCegarLoop]: Abstraction has 1869 states and 2133 transitions. [2023-12-24 16:46:22,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:22,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 2133 transitions. [2023-12-24 16:46:22,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-24 16:46:22,014 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:22,014 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:22,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2023-12-24 16:46:22,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:22,214 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:22,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:22,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1788566241, now seen corresponding path program 1 times [2023-12-24 16:46:22,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:22,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460913499] [2023-12-24 16:46:22,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:22,215 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:22,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:22,216 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:22,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-24 16:46:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:22,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-24 16:46:22,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:23,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 19 proven. 1272 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2023-12-24 16:46:23,295 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 16:46:23,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2565 trivial. 0 not checked. [2023-12-24 16:46:23,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:23,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460913499] [2023-12-24 16:46:23,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460913499] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 16:46:23,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 16:46:23,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-12-24 16:46:23,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178191666] [2023-12-24 16:46:23,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:23,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:46:23,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:23,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:46:23,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-24 16:46:23,375 INFO L87 Difference]: Start difference. First operand 1869 states and 2133 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:23,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:23,530 INFO L93 Difference]: Finished difference Result 3807 states and 4302 transitions. [2023-12-24 16:46:23,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 16:46:23,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 279 [2023-12-24 16:46:23,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:23,533 INFO L225 Difference]: With dead ends: 3807 [2023-12-24 16:46:23,533 INFO L226 Difference]: Without dead ends: 2260 [2023-12-24 16:46:23,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 548 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-24 16:46:23,535 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 148 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:23,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 449 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 16:46:23,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2023-12-24 16:46:23,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1783. [2023-12-24 16:46:23,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1783 states, 1665 states have (on average 1.10990990990991) internal successors, (1848), 1673 states have internal predecessors, (1848), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 16:46:23,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2020 transitions. [2023-12-24 16:46:23,602 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2020 transitions. Word has length 279 [2023-12-24 16:46:23,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:23,602 INFO L495 AbstractCegarLoop]: Abstraction has 1783 states and 2020 transitions. [2023-12-24 16:46:23,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:23,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2020 transitions. [2023-12-24 16:46:23,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-24 16:46:23,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 16:46:23,605 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 16:46:23,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2023-12-24 16:46:23,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:23,806 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 16:46:23,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 16:46:23,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1919595041, now seen corresponding path program 1 times [2023-12-24 16:46:23,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 16:46:23,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836149237] [2023-12-24 16:46:23,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 16:46:23,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:23,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 16:46:23,808 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 16:46:23,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-24 16:46:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 16:46:24,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-24 16:46:24,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 16:46:24,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2563 trivial. 0 not checked. [2023-12-24 16:46:24,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 16:46:24,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 16:46:24,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836149237] [2023-12-24 16:46:24,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836149237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 16:46:24,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 16:46:24,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 16:46:24,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393490419] [2023-12-24 16:46:24,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 16:46:24,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 16:46:24,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 16:46:24,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 16:46:24,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 16:46:24,329 INFO L87 Difference]: Start difference. First operand 1783 states and 2020 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:24,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 16:46:24,610 INFO L93 Difference]: Finished difference Result 3500 states and 3939 transitions. [2023-12-24 16:46:24,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 16:46:24,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 279 [2023-12-24 16:46:24,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 16:46:24,611 INFO L225 Difference]: With dead ends: 3500 [2023-12-24 16:46:24,611 INFO L226 Difference]: Without dead ends: 0 [2023-12-24 16:46:24,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-24 16:46:24,614 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 122 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 16:46:24,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 457 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 16:46:24,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-24 16:46:24,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-24 16:46:24,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 16:46:24,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-24 16:46:24,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 279 [2023-12-24 16:46:24,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 16:46:24,614 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-24 16:46:24,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-24 16:46:24,615 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-24 16:46:24,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-24 16:46:24,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 16:46:24,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2023-12-24 16:46:24,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 16:46:24,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 16:47:23,919 WARN L293 SmtUtils]: Spent 58.98s on a formula simplification. DAG size of input: 274 DAG size of output: 265 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-24 16:48:26,534 WARN L293 SmtUtils]: Spent 58.77s on a formula simplification. DAG size of input: 274 DAG size of output: 265 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-24 16:54:22,589 WARN L293 SmtUtils]: Spent 5.93m on a formula simplification. DAG size of input: 323 DAG size of output: 569 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Received shutdown request... [2023-12-24 16:59:42,738 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-90-13-23-5-21-5-20-5-17-5-16-5-15-5-15-5-15-5-15-5-15-5-14-5-7-5-7-5-7-5-5-5-3-5-3-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-114-12-26-6-26-6-15-6-15-6-15-6-14-6-14-6-13-6-5-6-5-5-1 context. [2023-12-24 16:59:42,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 16:59:42,742 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-24 16:59:42,742 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 16:59:42,743 INFO L158 Benchmark]: Toolchain (without parser) took 873581.35ms. Allocated memory was 386.9MB in the beginning and 727.7MB in the end (delta: 340.8MB). Free memory was 344.4MB in the beginning and 369.1MB in the end (delta: -24.7MB). Peak memory consumption was 317.6MB. Max. memory is 8.0GB. [2023-12-24 16:59:42,743 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 253.8MB. Free memory is still 204.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 16:59:42,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.48ms. Allocated memory is still 386.9MB. Free memory was 344.4MB in the beginning and 329.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-24 16:59:42,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.73ms. Allocated memory is still 386.9MB. Free memory was 329.1MB in the beginning and 326.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 16:59:42,743 INFO L158 Benchmark]: Boogie Preprocessor took 57.66ms. Allocated memory is still 386.9MB. Free memory was 326.5MB in the beginning and 320.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-24 16:59:42,743 INFO L158 Benchmark]: RCFGBuilder took 713.31ms. Allocated memory is still 386.9MB. Free memory was 320.2MB in the beginning and 267.3MB in the end (delta: 53.0MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2023-12-24 16:59:42,744 INFO L158 Benchmark]: TraceAbstraction took 872454.71ms. Allocated memory was 386.9MB in the beginning and 727.7MB in the end (delta: 340.8MB). Free memory was 266.7MB in the beginning and 369.1MB in the end (delta: -102.3MB). Peak memory consumption was 240.0MB. Max. memory is 8.0GB. [2023-12-24 16:59:42,744 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 253.8MB. Free memory is still 204.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 310.48ms. Allocated memory is still 386.9MB. Free memory was 344.4MB in the beginning and 329.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.73ms. Allocated memory is still 386.9MB. Free memory was 329.1MB in the beginning and 326.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.66ms. Allocated memory is still 386.9MB. Free memory was 326.5MB in the beginning and 320.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 713.31ms. Allocated memory is still 386.9MB. Free memory was 320.2MB in the beginning and 267.3MB in the end (delta: 53.0MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. * TraceAbstraction took 872454.71ms. Allocated memory was 386.9MB in the beginning and 727.7MB in the end (delta: 340.8MB). Free memory was 266.7MB in the beginning and 369.1MB in the end (delta: -102.3MB). Peak memory consumption was 240.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-17-9-14-5-13-5-6-5-6-5-6-5-4-5-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ∧-16-9-14-5-13-5-6-5-6-5-6-5-4-5-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown